Native ecosystems are well-balanced environments that have been established over many years. The introduction of non-native organisms to an ecosystem can disrupt the balance and lead to undesirable consequences. By examining the differences between native and invasive plants, students gain a deeper understanding of how plant species shape and sustain ecosystems. This unit enables learners to explore the complex interactions between plants, animals, and the environment while developing key science skills, including observation, classification, and analysis. This unit will guide students in solving plant mysteries, analyzing seed dispersal, writing informative-explanatory texts, and creating a public awareness campaign.